Cell Organisation

Question 1

Why do large multicellular organisms have different systems inside them?

Answer 1

For exchanging and transporting materials.

Question 2

Name three examples of tissues in mammals and what they do.

Answer 2

Muscular tissue- contracts to move whatever it is attached to
Glandular tissue- makes and secretes chemicals like enzymes and hormones
Epithelial tissue- covers some parts of the body, for example the inside of the gut.

Question 3

How does muscular glandular and epithelial tissue help with the function of the stomach?

Answer 3

Muscular tissue – moves the stomach wall to churn up the food
Glandular tissue – makes digestive juices to digest food
Epithelial tissue – covers the outside and inside of the stomach

Question 4

Name five parts of the digestive system and what they do.

Answer 4

1. The glands, for example, the pancreas and salivary glands– produces digestive juices
2. The stomach– digests food
3. The liver– produces bile.
4. The small intestine – absorbs soluble food molecules
5. The large intestine - absorbs water from undigested food leaving faeces.